1939361 has 4 divisors (see below), whose sum is σ = 1980672. Its totient is φ = 1898052.

The previous prime is 1939351. The next prime is 1939363. The reversal of 1939361 is 1639391.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1639391 = 13 ⋅126107.

It is a cyclic number.

It is not a de Polignac number, because 1939361 - 2¹⁸ = 1677217 is a prime.

It is a super-2 number, since 2×1939361² = 7522242176642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1939363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20585 + ... + 20678.

It is an arithmetic number, because the mean of its divisors is an integer number (495168).

2^1939361 is an apocalyptic number.

It is an amenable number.

1939361 is a deficient number, since it is larger than the sum of its proper divisors (41311).

1939361 is an equidigital number, since it uses as much as digits as its factorization.

1939361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41310.

The product of its digits is 4374, while the sum is 32.

The square root of 1939361 is about 1392.6094211946. The cubic root of 1939361 is about 124.7056755288.

The spelling of 1939361 in words is "one million, nine hundred thirty-nine thousand, three hundred sixty-one".